BEN PROF 1/ 142 VOL.5 DNA IB (BX NO. 48)
BEN PROF 1/123/1A DNA IB (BX NO.39)
BEN PROF 1/117/1 DNA IB (BX.38)
Ben prof 146/2 DNA IB (BX NO 49)
Ben prof 200/2f DNA IB (bx no.68)
BEN PROF 1/118 VOL.II DNA IB (BX NO.38)
Ben Prof 1/200/4 DNA IB (BX no. 69)
Ben prof 200/5 DNA IB (bx no.69)
Ben Prof 1 178/Vol.IV IDN IB (BX NO. 60)
BEN PROF 1/115/5 DNA IB (BX NO.37)